Screening or separating machine.



Patented June l2, 1917.

4 SHEETS-SHEET l.

wucwr;

f'llh): l fd T. l. STURTEVANT.

SCREENING 0R SEPARATJNG MACHNE.

APFALICATIUN FILED NGV. 25| IH416.

'111. STURTEVANT.

SCREENING 0R SEPAHATING MACHINE.

` APPLICATION HLED NOV.25;1916.

Patented June l2, 1917.

4 sHEETs-susfr z.

i?. L STUHTEVANT. SCREENNG 0R SEPARATHNG NIA'l-HNL` M'Pmcmmu FILED Nov. 25. i915.

1 ,229,8 l 0,l n Patented June 12, 1917 4 SHEETS-SHEET 3.

T J. SIURTEVANT. SCREENING UR SEPARATING MACHINE.

APPLJCATIUN FHLED NHV 25u 1916n Patented Jun@ 12, 1917.

4 SHEETS-SHEET 4.

H jauni UNITED STATESY PATENT OFFICE.

THOMAS JOSEPH STURTVANT, OF WELLESLEY, MASSACHUSETTS, ASSIGNOB T0 STURTEVANT MILL COMPANY, A CORPORATION 0F MAINE.

SCREENING 0R SEPARATING MACHINE.

Specification of Letters Patent. Paiintd June 12, 1,917.

Application filed November 25, 1916. Serial No. 183,890

To ZZ 11i/wm it may concern.'

lle it known that I, Tiioiiras J. STURTE- iax'i, a citizen oi the United' States, residing at Wellesley, in the county of Norfolk and State of Massachusetts, have invented or discovered certain new and' useful Improveniente in Screening or Separating Maclines, ofivhich the following is a specifiration, reference being had therein to the accompanying' drawings.

T his invention relates to separating machines with vibrating screens, and has for one ci' its objects to provide machines of this character which are made in detachable sections or iiiiil'sipliiced side by side, so that a niacliiii'c of any desired capacity may be 'furnished at short notice, each of the detachable sections or units being provided with its own screens and its own jarring mechanism, the jarring devices being all operated from a single source of power. This detachable A`unit construction' is advantageous tothe manufacturer in that a machine of any desired capacity may be quickly provided by furnishing any desired number ov scctioi'isor units, and a large machine may be conveniently transported in sections which can be readily secured together in setting up thel machine for use. Moreover the user of a machine comprising a number of complete sections or' units may set up a ma chino of any desired capacity by joining tounit its p'ropcr amount of material.

,f rether any desired number of such sections or units. A common distributor will supply the material to be screened bythe several units or sections of the separatipg machine, such distributor preferably consisting ofa rotary conveyor mounted in a feed box eornmon to the several: 'sections of the screening or-.scp arating machine and provided with means -for distributing to each sectionor This fecdbox, as also the rotary conveye or distributor, may be made in detachable sections coi-responding to .the sections or units of the separator; or the feeding and distributing `parts may lue-made integral, and in such cascinay be furnished in lengths correspcnding to the number of sections or'units of lhc screening or separating machine which a rc to be used together.`

The jarring: driving mechanism for the several separator sections or units, operated arranged that the jarring mechanism for any one of several sections or units may be run independently of the other section or sections, so that one or more sections may be runlundisturbed while the other section or sections are out of operation.

In the accompanying drawings Figure 1 is a front view of a two-section or two-unit inclined separator embodying the present invention, with the coverof one sectionor unit in raised position, and Fig. 2 is a broken out side view of the same. Fig. 3 is an end View of the two-unit separator looking from the bottom of Fig. 1. Figs. 4 and .5 are somewhat diagrammatic views illustrating preferred forms of driving connections for the rotary shafts of the jarring mechanisms of the sections or units of the separator. Fig. 6 is a rear view of the top part of a twosection separator pro vided with a1 sectional feed' box, and Fig.` 7V is an end elevation of one unit of the sectional feed' box.

Referring to the' drawings, 12 denotes the f casings ofthe units of the sectional inclined separator, these casings having complete side parts so that the chambers of thel adjoining units or sections are fully divided from each other, each casing thus having its own screening or separating chamber. The sections or units 12 are lietaehably secured together by means ofl bolts 10 passing through bracing sleeves 11 interposed between the ad jacent sides of the sections or units, as more clearly shown in Fig. Each separator sec tion or unit is provided with a movable cover 13 which is preferably hinged at its top sol that it may be lifted., as more clearly shown in Fig. when access to the chamber of a Vsection or unit is desired. The operatin .portion of the 'jarring' mechanism of eac section or unit is mounted on ite-hinged cover and may be ci? any desired construction. This operating mechanism, as herein shown` is similar to that shown and described in the Sturtcva-nt ULS. Patents Nos. 1,035,262 and 1114,064, and. comprises rotatf ing( shafts 14 4mounted on standards fixed to thr` covers 13, and provided with arms 15' carrying'rollcrs 1li which lift pivotcd ham,- incrsl? and which hammers, when released from said rollers, strike on the jarring posts 18. Each sri-cen section is provided with a'. nonvibratiiig coarse or scalpcr screen i9 and a vibrated fine' sci'ccii 2() below said desirable;

coarse or scalper screen. The screen clothing of the .sci-.Iper screen is preferably placed on to o'f the screen' frame and the screen clothrn of the fine screen' on the bottom of its rame. This construction pro vides a very considerable space between the screen clothing'of the two screens, which is The vibrating screen 20. is sustained by spring supports 21 beneath which are located stops 22 which limit the downward movements of the 'vibrating screen, these spring supports and stops being preferably located at the sides of the screen, as clearly shown in Fig. 3. The vibrating screens 2O are provided with cross plates 23 on which are mounted sockets 24 Whichreceive the lower ends of .theI jarring posts 18 passing loosely thron h sleeves 25 mounted on cross plates 26 wii which. the scalper screen 19 is provided.

Mounted at the upper end of the inclined separator sections or units is a feed box 27 in which is journaled a shaft 28 provided with a. screw converer 29 which dlstribtnes the material to 4be screened or separated and which material is supplied to said'feed hon from an opening" or hopper located atBO at one end of said feed boxl at the point where said feed box overhangs. the sepam-v tor, so that the material supplied to the screens willfully cover the same laterally at the upper ends thereof. This feed box and the rotary conveyer or -distributer 'which is mounted therein are common to the several sections or .units of the separator so as to'supplymateria-l to all of the same, such material passing over an adjustable feed plate -lhaving an inclined upper edge which is highestat the end of. the feed box where the material enters. The .feed box is provided in front with a hinged door or cover 32' which, when unbolted, may he raised forthe convenient insertion of the conveyer shaft and its bearings 28" which latter are heid in place byv screws or bolts 28, said feed box having at its ends removf able sli-des B3 held in place by the door or cover 32and'which -may be taken out when the conveyor shaft and its bearings are to be removed or inserted. The feed box is preferably provided at its rear side with a. hinged door 34, and each casing, affording a screening chamber, is also preferably vrovidcd at its upper end with a hinged oor 35 which maybe opened toal'ord access to said screenin chamber, as for `the insertion or removal o '.the'screens."

'as Shown in Figs. C: and 7, approximately corresponding in length .ttlthe width. ofthe which is belted to a .journaledA in suitable n-ackets 46 xedto the sections or units of the screen or separator,

'movable standards or bracing parts 27- which may be taken out when the hinged door is lifted. for' the insertion or removal of the conveyor and the .feed shaft 28. Also the conveyer shaft and screw conveyor may' be made in one part,'as vshown in. 'Fig. 1, or

said shaft audits attached conveyor may be made in detachable 'parts corresponding in length tothe width of the detachable casing sections, one part for each section or 'unit of thc screening or' separating machine.

The' particular constructimi of feed box and conveyor or distributor herein. shownV and described is. however, .not claimed in this raso, the saine being included in my :implication No. 1Ei( ,!i`2 tiled December 12, 191.

The screens 19 and 20 are preferably pro-l vided at their edges with upwardly extending yielding Hang-es 37 bearing against the inside walls of thecasings 12 so as to pref vent the material. beingscreened from assf ing over the edges of the screens; an the screen frames will also preferably be pro vided at their sides with inclined deflectors 3S which will cause the material passing down the screens to he diverted on to the wire screen clothing.

ln lifting the hinged rovers 13 for the separator sections or units it is desirable that thc belts -hy which the shafts 14 are driven should not he disturbed, or atleast that it should not he 'necessary to remove any of said bolts. and to this end the present invention 'provillrssnvh an arrangement of driving' pulleys and bolts that said covers 1 3 may be liftedand -carry .with them all .for the shafts 14, shown in Figs.. 1 and 4, the pulley 39 on the conveyor shaft 28'is belted to a'pnlley 40 on an 11p-er shaft 14 .which is provided with a pul ey 41belted t0 a vpulley 42 on al'lower shaft 14. The upper shaft 14 is provided with' a second pulley 43 ulley 44 on a shaft 45 top of the screen frame or casing 12, this shaft 45 beingprovidcd with a second'pulle' p 4.7 belted to a pulley 48 on the upper sha 14- of the adjoining screen section or unit,

said last-named shaft being provided with-a understoor,l., i v

d' backs or bottoms 35 of th@ ""slaclreniiig' any pulley Li9 belted to a pulley 50 on. the lower shaft 14 of the second section or unit. F rom this construction it Will be understood that the driving connections between the pulley 39 and the several shafts 1l of the separator sections or units turbed when either/J, of the covers for the separator sections. or units are lifted, but that only a slackening of one or more of the connecting,r belts will occur when said covers are lifted, so that the runningr of any section having au unlifted cover may continuerindisturbed when tlic cover of any of the'other sections farther from the source of power, is lifted.

In the arrangement of the parts of the drivin@ mechanism for the shafts 14 shown in Fig. 5, the pulley @LOHfihay be belted to the pulley 39 on the conveyer shaft, said pulley being mounted on a shaft 45 which will be sustained in stationary 'supports on the screen frames or `casing parts, this shaft 45 being provided With pulleys 51 belted to pulleys on the upper shafts 14 which are provided with pulleys 53 belted to pulleys 5t on the lower shafts le; and this ai' 'ange ment of d rivingl mechanism can be used with any desired number 'of screen sections or units, as will be' understood.

.By removing or slackening the belt connectiiig thejpulleys i7 andY 48, in the `driving arrangement shown in Figs. 1 and 4, the left hand unit of the separator may be run un disturbed andk independently of the right hand unit Vor section; andiby removing or of' the belts connecting the pulleys-'5l` and 52, in the driving arrangement shown in FigQF, any one or more of several separator sections or` units may be frun undisturbed'and independently of the other sections or'y units, as will be readily VEhe inclineI separator 'sections or units are preferably arranged at a somewhat steeper langle than tlie'sc'reens' of the inclined separator.,v These inclined backs or bottoms are permanent parts ofthe' screen casings and have no doors` or openings, which Would/be of no practical use in this sectional separator construction. The screencasings, including their inclined bottoms, are si'istained in inclined positions vby the framework or supports 5G. f

This invention is not to be understood as being' limited to the details herein shown and descril'ied, as these may be varied widely, lwithin tlie province oi" mechanical skill, yvitliout dciuii'tinp,n from the scope and gist of the invention.

`Having thus described my invention l.

claim and desire to secure by Letters latcnt:

l ln a vibrating separator. the combination with a plurality of inclined lscreen sec ltions or units arranged side by sido and dc- `:tachably secured together, said sections or -own casing and jarring mechanism an will not be dis-l wsa hl screens,

units being individually complete, having its ing,r provided with inclined screens, of a feed box and a conveyor or distributor mounted at thc upper ends of said inclined. screen sections or units and common to them all, so as to supply and. distribute material to he screened to all of said sections or units.

2. ln a vibrating separator, the combination with a plurality of inclined screen sections or units arranged side by side 'and dctachahly secured tg'igether, said sections or units being each individually complete, having its`own casing' and jarring mechanism and being provided with inclined screens, of a feed box and a conveyor or distributor mounted at the upper ends of said inclined SCIGBI'I SeCtlOllS (Jl llIlltS tlllfl GOmIYlOIl t0 tillen).

all, so as to supply and distribute material to be screened to all of said sections'or units, each screen section or unit being,y pr0 vided 'with a hinged cover, jarring operating mechanism mounted on said cover, and a of power from which the :ne tor the several screen s are operated.

jarring' nisch sections or una.

2. ln a vilnating screening or scparating;`

machine, the combination with a plurality of complete screen sections or units arranged side by side and detachably secured together, each casing of a screen section aording a complete compartment, inclined screens in' comlnirtinents, and a screen jarring mecha-I ui'sni for each section or unit, of a 'feed box and distributor counnon to the several screen sections or units-and adapted to supply and distribute material to tlieni all, said feed. boX and distributor being' formed in sections correspoiidiiur to the sections or units 'of the separator.

5. .ln an inclined separator, the combination with a plurality of screen sections or ioo units arranged side by side and detachably secured together, each of. said sections or units havinglr a con'iplete casing and being provided with screens and with a hinged cover, of means, extending within the casiiigs of said sections or units` for jarring 'arring operating mechanism mounted on the said cover and comprising rotary shafts, and a driving mechanism for A secured together, each hinged cover,

said shafts so arranged that either of the ,covers ofthe sectional separator may be raised without lifting the others or without removing the powerconnections for their jarring operating mechanisms.

6. In an inclined separator, the combination' withy a plurality of screen sections or units arranged side by Side and detachably secured together, each of and with a hinged ings of said sections or zunits, for jarring said screens, jarring operating mechanism mounted on the said covers rotary shafts, and a driving mechanism for said shafts so arranged that either of the covers of the sectional. separator may be raised Without lifting removing vthe `power connections for their jarring operating mechanisms, said driving mechanism comprising pulleysmounted on a fixedpart of the machine-and belted to' and from pulleys mounted on said shafts.

7.' In an inclined separatorfth-e combination with a plurality' of screen sections or units arranged sideby side and detachahly osaid sections or units having its own being provided with ot' means, extending within the casingsof said sections or units, for

jarring said screens, jarring operating mechnism mounted on' the said covers and comprising rotary shafts, a driving mechanism forsaid shafts so arranged that either of the covers of the sectional separator may be raised without lifting the others or without removing the power connections lfor their 'arring operating mechanisms,

mechanism comprising pulleys mounted on j a fixed part of the machine and belted to saidv sections or units having al'complete casing and being, vprovided with screens cover, of means, extending within the casand comprising the others or withoutV complete casing and screens and with av said driving and from pulleys mounted onv said shafts, and apommon source of power from which the driving mechanism ofl all of the sections or units are*0perated. l i

8. In a separator, the combination with a plurality of screen sections comprising complete casing parts detachably secured together and having suitable covers, said sections heilig provided with its own screens, means, extending through said covers. into 'said casing parts, for jarring said screens, jarring operating mechanism mounted on said covers and comprising rotary shafts, and a common driving mechanism for'all of said shafts so constructed and arranged that the operation of the jarring mechanism of one sect-rdn 'may he sns pended without disturbing tbe operation of the other section or sections nearer to the source of power.

9. In a vibratin tion with a plura ity of screen sections or units arranged side by Side and detachahly secured together and eachhavin a complete casing and being provided with its own screens and jarringfmechanism, so as t0 he complete in itself, a common source of power' 'from which the jarring mechanisms 'of the several screen sections or units are operated, and driving connections between the several sections or units, so that the jarring mechanism of one section or unit is-driven from the jarring mechanism oi the adjoining secticn or iinit.

10. A screen for use in an inclined 'separator provided at the lside portions of its frame with upwardly 'extending yielding flanges to bear against the inside walls' of the separator casing,

`In testimony whereof affix my signature.

riioiiis Josemi srimrrvisi.

each of' separator, the combina- 

